<script setup lang="ts">
import { delRoleUserAPI, getRoleDetailAPI, getRoleListAPI, getRoleUserAPI, getTreeListAPI } from '@/apis/system';
import type { Role, RoleData, RoleUser } from '@/types/system';
import { ref } from 'vue';
// 导入两张图片
import userIcon from '@/assets/user.svg'
import userIconActive from '@/assets/user-active.svg'
import { ElMessage, ElMessageBox, type TreeInstance } from 'element-plus';

// 角色列表
const roleList = ref<Role[]>([])

// 1. 获取角色列表
const getRoleList = async () => {
  const res = await getRoleListAPI()
  roleList.value = res.data
  // 获取第一个角色详情
  const roleId = res.data[0].roleId
  getRoleDetail(roleId)
  // 获取第一个角色的成员
  getRoleUser(roleId)
}
getRoleList()

// 2. 点击激活交互
const activeIndex = ref(0)
const changeRole = async (index: number, roleId: number) => {
  // 2.1 设置高亮效果
  activeIndex.value = index
  // 2.2 获取角色详情
  getRoleDetail(roleId)
  // 2.3 获取角色成员
  getRoleUser(roleId)
}

// 3. 获取权限列表(树形)
const treeList = ref<RoleData[]>([])
const getTreeList = async () => {
  const res = await getTreeListAPI()
  // console.log('res', res);
  treeList.value = res.data
}
getTreeList()

// 4. 获取角色详情
const perms = ref<number[][]>([]) // 权限id数组，二维数组
const treeRefs = ref<TreeInstance[]>([]) // 树形组件，这里也是数组
const userTotal = ref(0) // 成员数量
const getRoleDetail = async (roleId: number) => {
  const res = await getRoleDetailAPI(roleId)
  perms.value = res.data.perms  // 保存权限id
  userTotal.value = res.data.userTotal // 保存成员数量

  // 切换时，设置树形组件选中
  treeRefs.value.forEach((tree, index) => {
    // 选中节点，setCheckedKeys 优先级高于 default-checked-keys(默认占位)
    tree.setCheckedKeys(perms.value[index])
  })
}

// 5. tab切换
const activeTabName = ref<'tree' | 'member'>('tree')

// 6. 获取角色成员
const roleUserList = ref<RoleUser[]>([])
const getRoleUser = async (roleId: number) => {
  const res = await getRoleUserAPI(roleId)
  roleUserList.value = res.data.rows
}
// 7. 删除角色
const delRole = async (roleId: number) => {
  // 确认弹窗
  ElMessageBox.confirm('是否确认删除当前角色?', '温馨提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning',
  }).then(async () => {
    // 删除角色
    await delRoleUserAPI(roleId)
    // 获取角色列表
    getRoleList()
    // 轻提示
    ElMessage.success('删除成功')
  }).catch(() => { })
}
</script>

<template>
  <div class="role-container">
    <div class="left-wrapper">
      <div 
        v-for="(item, index) in roleList" 
        :key="item.roleId" 
        @click="changeRole(index, item.roleId)"
        class="role-item"
        :class="{ active: index === activeIndex}"
      >
        <div class="role-info">
          <!-- 动态绑定图片 -->
          <img :src="index === activeIndex ? userIconActive : userIcon" class="icon" />
          {{ item.roleName }}
        </div>
        <div class="more">
          <el-dropdown>
            <span class="el-dropdown-link">
              <img src="@/assets/more.svg" class="icon" />
            </span>
            <template #dropdown>
              <el-dropdown-menu>
                <el-dropdown-item @click="$router.push(`/roleAdd/${item.roleId}`)">
                  <el-button link>编辑角色</el-button>
                </el-dropdown-item>
                <el-dropdown-item @click="delRole(item.roleId)">
                  <el-button type="danger" link>删除</el-button>
                </el-dropdown-item>
              </el-dropdown-menu>
            </template>
          </el-dropdown>
        </div>
      </div>
      <el-button class="addBtn" size="small" @click="$router.push('/roleAdd')">
        添加角色
      </el-button>
    </div>
    <!-- 右侧权限和成员 -->
    <div class="right-wrapper">
      <el-tabs v-model="activeTabName">
        <el-tab-pane label="功能权限" name="tree">
          <div class="tree-wrapper">
            <!-- 角色权限列表 -->
            <div v-for="(item, index) in treeList" :key="item.id" class="tree-item">
              <div class="tree-title"> {{ item.title }} </div>
              <!-- 
                el-tree 树形组件
                  props: {
                    label: 'title',       映射标题属性
                    disabled: () => true  禁用复选框
                  }
                  show-checkbox           添加复选框
                  default-expand-all      展开所有节点
              -->
              <el-tree 
                :data="item.children" 
                :props="{ label: 'title', disabled: () => true }" 
                default-expand-all
                show-checkbox
                :default-checked-keys="perms[index]"
                node-key="id"
                ref="treeRefs"
              />
            </div>
          </div>
        </el-tab-pane>
        <el-tab-pane :label="`成员(${userTotal})`" name="member">
          <div class="user-wrapper">
            <el-table :data="roleUserList">
              <el-table-column type="index" width="250" label="序号" />
              <el-table-column prop="name" label="员工姓名" />
              <el-table-column prop="userName" label="登录账号" />
            </el-table>
          </div>
        </el-tab-pane>
      </el-tabs>
    </div>
  </div>
</template>

<style scoped lang="scss">
.role-container {
  display: flex;
  font-size: 14px;
  background-color: #fff;

  .left-wrapper {
    width: 200px;
    border-right: 1px solid #e4e7ec;
    padding: 4px;
    text-align: center;

    .role-item {
      position: relative;
      height: 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 20px;
      cursor: pointer;

      // 高亮类名
      &.active {
        background: #edf5ff;
        color: #4770ff;
      }
    }

    .role-info {
      display: flex;
      align-items: center;

      .icon {
        margin-right: 10px;
        width: 20px;
      }
    }

    .more {
      display: flex;
      align-items: center;
      .icon {
          width: 15px;
        }
    }

    .addBtn {
      width: 100%;
      margin-top: 20px;
    }
  }

  .right-wrapper {
    flex: 1;

    .tree-wrapper {
      display: flex;
      justify-content: space-between;

      .tree-item {
        flex: 1;
        border-right: 1px solid #e4e7ec;
        padding: 0px 4px;
        text-align: center;

        .tree-title {
          background: #f5f7fa;
          text-align: center;
          padding: 10px 0;
          margin-bottom: 12px;
        }
      }
    }

    ::v-deep .el-tabs__nav-wrap {
      padding-left: 20px;
    }

    .user-wrapper {
      padding: 20px;
    }
  }
}
</style>